Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 4
Book Description
Recent BABAR Results on Two-photon Physics
Author: Recent Results on Two-Photon Physics at BaBar
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 6
Book Description
The authors present measurements of the [gamma][gamma]* → [pi]° transition form factor for the momentum transfer range Q2 = 4-40 GeV2 and the [gamma][gamma]* → [eta]{sub c} transition form factor for the range Q2 = 2-50 GeV2. The results of the measurement of the [eta]{sub c} mass, total and two-photon widths are also presented.
Recent Results on Two-Photon and Tau Physics at BABAR.
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
We present a measurement of the total width[Lambda][sub tot][sup[eta][sub c]] and mass M[sub[eta][sub c]] of the[eta][sub c] meson with the BABAR detector at the PEP-II B-factory at SLAC. The results based on a data sample of 88 fb[sub -1] are[Lambda][sub tot][sup[eta][sub c]]= (33.3[+-] 2.5(stat.)[+-] 0.8(sys.))MeV/c[sup 2] and M[sub[eta][sub c]]= (2983.3[+-] 1.2[+-] 1.8) MeV/c[sup 2]. An enhancement observed around 3.63 GeV/c[sup 2] can be interpreted as an evidence for the[eta][sub c](2S) state. In addition a preliminary measurement of the[tau] lepton lifetime using 30.2 fb[sup -1] is described. The measured[tau] lifetime is:[tau][sub[tau]]= (290.8[+-] 1.5(stat.)[+-] 1.6(syst.)) fs.
Review of recent experimental results on two photon physics
Author: Jacob GrunhausParticle Physics In Laboratory, Space And Universe - Proceedings Of The Eleventh Lomonosov Conference On Elementary Particle Physics
Author: Alexander I StudenikinPublisher: World Scientific
ISBN: 9814480940
Category : Science
Languages : en
Pages : 439
Book Description
This volume brings together the latest developments within a wide spectrum of topics in particle physics. Covering both theoretical and experimental aspects, areas such as neutrino and astroparticle physics, tests of the Standard Model and beyond, heavy quark physics, non-perturbative QCD, quantum gravity effects and cosmology, physics at the future accelerators, etc. are discussed.
Two-photon Physics
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 24
Book Description
Recent experimental results in two-photon physics are reviewed. Possibilities for future experimentation at high [gamma][gamma] collision energies are discussed. 95 refs., 12 figs., 7 tabs.
Author: H. P. Paar
Author: T. Nozaki
Author: Hermann Kolanoski
Author: Johann K. Bienlein